Airhead ORB Booster Ball and Tow Rope The Airhead ORB Booster ball and Tow Rope keeps the tube rope out of the water allowing for a more responsive ride. For Boats with low tow points on the transom the Airhead ORB is a must. The ORB eliminates virtually all line slack enhancing safety and extending the tubes life. The ORB Booster Ball is made of durable 30 guage PVC construction. The included 60 tow line has a tensile strength of 4100 lbs. California Residents WARNING Cancer and Reproductive Ha